Spike Chunsoft, the developer behind the Dragon Ball fighting games, is working on a new mashup fighting game with characters from Ultraman, Gundam, and Kamen Rider. The gameplay reminds me of the Dragon Ball Z Raging Blast series, perhaps Spike Chunsoft is using the same engine? Heroes Vs has these heroes in its roster so far:

Ultraman Mebius

Ultraman Zero

Utraman Nexus

Alien Empera

Kaiser Belial

Dark Zagi

Kamen Rider W

Kamen Rider OOO

Kamen Rider Den-O

Kamen Rider Eternal

Dinosaur Greeed

Nega Den-O

Gundam 00

G Gundam

Turn A Gundam

Reborns Gundam

Master Gundam

Turn X Gundam

Namco Bandai is really pushing the Ultraman X Gundam X Masked Rider setup. Lost Heroes, a dungeon RPG with all three series, came out in September and Great Battle Fullblast, a beat ‘em up, was released in March. Heroes Vs is scheduled for February 7, 2013 in Japan.